Home / 132,839.19-183,311.40-75,471

Finding the Fourth Proportional to 132,839.19, 183,311.40 and 75,471

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Solution

The fourth proportional to 132,839.19, 183,311.40 and 75,471 is: 104,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,839.19 : 183,311.40 = 75,471 : x
  2. Step 2: Convert to fraction form
    132,839.19/183,311.40 = 75,471/x
  3. Step 3: Cross multiply
    132,839.19x = 183,311.40 × 75,471
  4. Step 4: Simplify right side
    132,839.19x = 13,834,694,669.40
  5. Step 5: Solve for x
    x = 13,834,694,669.40/132,839.19
  6. Step 6: Final answer
    x = 104,146.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.